I’ve watched homeowners sign contracts faster than they’d sign for a new phone plan, and roofing costs ten times more. That gap between decision speed and dollar amount is where most bad outcomes start.
Below are the questions that actually separate a solid contractor from someone who’ll be gone by the time a problem shows up.
“Can I see your license and insurance?”
Not a business card. The actual HIC registration number and a current certificate of insurance. Any hesitation here is disqualifying, full stop.
“Are you certified by the manufacturer for the shingle brand you’re proposing?”
This one surprises people. Manufacturer-certified installers can often offer stronger warranties, sometimes covering labor in addition to materials, because the manufacturer trusts the installation quality. A non-certified crew might use the same shingle but leave you with a weaker warranty if something fails.
“What’s included in ventilation and flashing?”
Ask this even if you don’t fully understand the answer. What matters is whether they have one. Ridge vents, soffit vents, and proper flashing around every penetration point, chimneys, skylights, pipe boots, are what keep a roof from failing from the inside out. A contractor who shrugs at this question is skipping it.
“What’s your payment schedule?”
A deposit at signing, a progress payment at material delivery or mid-project, and a final payment on completion is standard. Full payment before work starts is not.
“What happens if you find rotted decking?”
Every experienced contractor has found bad plywood under old shingles at some point. What matters is whether they have a clear per-sheet replacement price ready to go, instead of inventing a number on the spot.
“Who do I call if something goes wrong in year three?”
A workmanship warranty only means something if the company answering the phone still exists. Ask how long they’ve operated under the current business name.
Any established Roofing Contractor NJ homeowners return to for siding, gutters, or chimney work later should be able to answer every one of these without opening a script.
Frequently Asked Questions
Q: Is it normal for a roofing contractor to require a deposit?
A: Yes, typically 10 to 30 percent. It’s the full-payment-upfront requests that should raise concern.
Q: What’s the difference between a manufacturer warranty and a workmanship warranty?
A: The manufacturer warranty covers material defects. The workmanship warranty, provided by the contractor, covers installation errors. You need both explained separately.
Q: Should I ask for references from a roofing contractor?
A: Yes, and ask for recent ones, ideally within the last year, in your own town if possible.
Q: Can a roofing contractor start work without a signed contract?
A: No. Never let work begin on verbal agreement alone, even for a small repair.
Q: What if a contractor’s price is much lower than everyone else’s?
A: Ask why, directly. It’s often a sign of corner-cutting on materials, labor, or insurance coverage rather than a genuine deal.
